/*
 Copyright 2023 The Volcano Authors.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
*/

package source

import (
	"context"
	"errors"
)

type NodeMetrics struct {
	CPU    float64
	Memory float64
}

type MetricsClient interface {
	NodeMetricsAvg(ctx context.Context, nodeName string, period string) (*NodeMetrics, error)
}

func NewMetricsClient(metricsConf map[string]string) (MetricsClient, error) {
	address := metricsConf["address"]
	if len(address) == 0 {
		return nil, errors.New("metrics address is empty")
	}
	metricsType := metricsConf["type"]
	if metricsType == "elasticsearch" {
		return NewElasticsearchMetricsClient(address, metricsConf)
	}
	return NewPrometheusMetricsClient(address, metricsConf)
}
